International Conference on Renewable Energies and Power Quality (ICREPQ’09)
European Association for the Development of Renewable Energies, Environment and Power Quality
Valencia (Spain), 15th to 17th April, 2009
High Efficiency Squirrel Cage Induction Machines T. Tudorache, L. Melcescu and V. Petre 1
Electrical Engineering Faculty, Electrical Machines, Materials and Drives Dept., University POLITEHNICA of Bucharest 313 Splaiul Independentei, 060042, Sect. 6, Bucharest (Romania) Phone/Fax number: +0040 21 3197969, e-mail:
[email protected],
[email protected],
[email protected]
Abstract. This paper highlights the benefits of replacing the classical cast aluminum cage with a cast copper cage in the manufacture of future generation of high efficiency induction machines used as motors or generators. The numerical analysis carried out in the paper is based on a 2D plane-parallel finite element approach of the induction machine, the numerical results being discussed and compared with experimental measurements. Key words Induction machines, energy savings, FEM.
References [1] CEI 60034-30 Standard, Rotating electrical machines – Part 30: Efficiency classes of single-speed, three-phase, cageinduction motors (IE-code), ICS 29.160, ISBN 2-8318-1013-0, Edition 1.0 2008. [2] Stanciu V.M., Cistelecan M., Niţiguş V., Popescu M., Politics for the use of electric machines with high electric efficiency, Electrical Engineering, Electronics and Automation, vol. 53, no. 3, 2005, Romania. [3] Tudorache, L., Melcescu, S. Paturca, Finite Element Analysis of Self-Excited Induction Generator for Isolated Small Power Wind Turbines, ICCEP Conference 2007, Capri, Italy, 2007. [4] Koo D.H., Han P.W., Chun Y.D., Design of Copper Rotor Induction Motor and Economical Comparison With Aluminum, Paper 247, ISEF-2007, Prague, Czech Republic, Sept, 2007. [5] J. L. Kirtley Jr., Designing Squirrel Cage Rotor Slots with High Conductivity, Proc. of ICEM’04 Conference, Sept. 2004. [6] Cioc I., Nica C., Design of Electrical Machines (in Romanian), EDP, Bucharest, 1994. [7] CEI 60034-2-1 Standard, Rotating electrical machines-Part 2-1. Standard methods for determining losses and efficiency from tests, ICS 29.160, ISBN 2-8318-9250-3, Edition 1.0 2007
